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Roundup

Best Upgrades and Mods for 3D Printers

Printer upgrades divide cleanly into two types: reliability improvements that reduce failed prints and hardware improvements that expand what the printer can do. Auto-bed leveling sensors (CR Touch, BLTouch) eliminate the manual leveling frustration that causes most beginners to abandon Creality and Ender 3 printers. Extruder upgrades improve filament grip and feeding consistency, reducing the grinding and under-extrusion that plagues stock extruders under load. Runout sensors stop print jobs automatically when a spool runs empty rather than printing hundreds of layers of air. This category covers the upgrades that deliver the most return across the major printer platforms, with specific callouts for Bambu Lab, Creality, and Prusa machines.

Compared 06
Top pick Creality CR Touch Auto Leveling Sensor
Updated Jul 2026
Quick answer

Our top pick for the Ender 3 is the Creality CR Touch Auto Leveling Sensor: it maps the bed and compensates in firmware, killing the manual-leveling failures that drive new owners away. Next add the Creality Sprite Pro Extruder, a direct-drive conversion that tames stringing and makes TPU reliable. A cheap runout sensor helps on prints over four hours.

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REF 01 TOP PICK Amazon
Creality CR Touch Auto Leveling Sensor
SCORE 4.6 / 5.0

Creality CR Touch Auto Leveling Sensor

The CR Touch is Creality's probe-based automatic bed leveling sensor, a direct upgrade from the BLTouch that uses a rigid metal probe pin rather than a plastic probe. It maps the bed surface automatically before each print and compensates for bed variation in software, eliminating the manual leveling process that frustrates most new Ender 3 users. Compatible with Ender 3, Ender 3 V2, Ender 3 Pro, and most Creality printers with Marlin firmware.

BEST FOR
New Ender 3 users frustrated with manual bed leveling, and any Creality user who experiences first-layer inconsistency despite manual leveling attempts.
PRICE
$18 to $30
  1. 1Metal probe pin is more durable and consistent than the plastic probe in original BLTouch designs
  2. 2Eliminates manual bed leveling, the most common source of failed first layers and print abandonment
  3. 3Broad Creality printer compatibility and Marlin firmware support with community-tested configuration files available

Requires firmware modification to enable; users unfamiliar with Marlin will need to follow a guide

SOURCE Check price on Amazon
REF 02 NO.02 Amazon
Bambu Lab AMS Lite
SCORE 4.6 / 5.0

Bambu Lab AMS Lite

The AMS Lite is the multi-material unit for Bambu Lab A1 and A1 Mini printers, supporting up to four simultaneous filament colors or materials. It handles automatic filament switching during a print, enabling multi-color prints and automated filament loading without manual spool changes. The AMS Lite is designed specifically for the A1 series and is not compatible with X1C or P1S printers.

BEST FOR
Bambu Lab A1 and A1 Mini users who want to print multi-color models, use different materials in the same print job, or eliminate manual filament swaps during longer print sessions.
PRICE
$125 to $145
  1. 1Enables 4-color printing on the A1 and A1 Mini without manual filament changes during print jobs
  2. 2Bambu Slicer integration makes multi-material print setup straightforward with the painted model workflow
  3. 3Runout sensor integration pauses the print automatically when any of the four channels runs empty

Multi-material printing generates a significant waste purge tower unless careful purge volume settings are used

SOURCE Check price on Amazon
REF 03 BEST VALUE Amazon
Creality Sprite Pro Extruder
SCORE 4.5 / 5.0

Creality Sprite Pro Extruder

A direct-drive extruder upgrade for Creality Ender 3 printers that replaces the stock Bowden extruder system. The Sprite Pro mounts directly on the printhead, eliminating the long PTFE tube that causes retraction inconsistency and makes flexible filament printing impractical on stock Ender 3 hardware. Compatible with Ender 3 V2, Ender 3 S1, and related Creality platforms.

BEST FOR
Ender 3 users who print TPU or other flexible materials, or who have tuned retraction settings extensively without eliminating stringing on PETG and have identified the Bowden extruder as the limiting factor.
PRICE
$35 to $55
  1. 1Direct-drive conversion significantly improves retraction control and reduces stringing on the Ender 3
  2. 2Enables flexible filament printing that the stock Bowden setup handles poorly
  3. 3Creality OEM quality and direct compatibility with Ender 3 mounting hardware

Increased printhead weight from the direct-drive motor requires slower print speeds to avoid ringing artifacts

SOURCE Check price on Amazon
REF 04 NO.04 Amazon
Heat-Set Brass Insert Kit
SCORE 4.5 / 5.0

Heat-Set Brass Insert Kit

Heat-set brass inserts allow machine screws to be threaded into 3D printed parts with the holding strength of a metal thread rather than a plastic thread that strips quickly. The inserts are pressed into pre-designed holes with a soldering iron tip, melting into the plastic and creating a permanent metal thread. Essential for any functional print that uses bolted joints or requires repeated disassembly.

BEST FOR
Functional part designers who print enclosures, cases, brackets, and assemblies that require repeated disassembly or that need joints strong enough for real mechanical loads.
PRICE
$10 to $18
  1. 1Creates metal threads in 3D printed parts that survive repeated tightening without stripping
  2. 2Available in M2, M3, and M4 sizes covering the majority of functional print fastener requirements
  3. 3Simple installation with a standard soldering iron using a flat or specialized heat-set tip

Requires a soldering iron for installation; not practical for users who do not already own one

SOURCE Check price on Amazon
REF 05 NO.05 Amazon
Creality Filament Runout Sensor
SCORE 4.3 / 5.0

Creality Filament Runout Sensor

A motion-detection runout sensor that pauses the printer automatically when filament motion stops, catching both filament runout and filament jams before they produce a failed print. Compatible with Creality printers using Marlin firmware and connectable to the dedicated runout sensor port on most Creality mainboards. Prevents the complete loss of a multi-hour print job when a spool runs out unexpectedly.

BEST FOR
Creality Ender 3 and Ender 3 V3 users who print jobs longer than four hours and want insurance against losing an overnight or all-day print to an empty spool.
PRICE
$8 to $16
  1. 1Detects both runout and jams, not just empty spools, catching more failure modes than motion-only sensors
  2. 2Plug-and-play installation on Creality printers with dedicated sensor ports and Marlin firmware
  3. 3Low cost relative to the print time it saves when it catches a runout or jam on a long job

Not compatible with all printer firmwares; Bambu Lab printers have native runout sensing that makes this redundant

SOURCE Check price on Amazon
REF 06 NO.06 Amazon
Enclosure Hardware Kit for IKEA Lack Table
SCORE 4.2 / 5.0

Enclosure Hardware Kit for IKEA Lack Table

The IKEA Lack table enclosure is the most popular DIY printer enclosure design for Ender 3 and similar mid-size FDM printers. This hardware kit provides the printed connector brackets, acrylic panels, and frame connectors to stack two Lack tables into a closed enclosure that traps heat for ABS and ASA printing. The design is open-source and the hardware kit handles the mechanical components that most users cannot print on their own printer without an enclosure.

BEST FOR
Ender 3 and similar open-frame FDM printer users who want to print ABS or ASA reliably and are willing to spend an afternoon on a DIY build to save significantly versus commercial enclosure prices.
PRICE
$20 to $35
  1. 1Low total cost when combined with two inexpensive IKEA Lack tables from a local store
  2. 2Open-source design with a large community of documented builds for troubleshooting guidance
  3. 3Effective heat retention for ABS and ASA printing at a fraction of the cost of commercial enclosures

Requires assembly time; not a plug-and-play solution like commercial enclosures

SOURCE Check price on Amazon
The method

How we chose

We evaluated each option on build quality, real-world performance, and value. Our top pick, Creality CR Touch Auto Leveling Sensor, earned the spot. The upgrade that saves new Ender 3 users from giving up on the hobby. Auto bed leveling solves the single most common source of early print failures and is worth installing before any other modification. The comparison above highlights exactly who each pick is best for.

Related guides

Best Bambu Lab Accessories: The Upgrades That Actually Matter

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Essential Creality Ender 3 Upgrades: What to Install and When

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Best Build Plates for 3D Printers: PEI, G10, and More

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FAQ

Best Upgrades and Mods for 3D Printers: FAQ

What is the first upgrade I should install on an Ender 3?+

Auto bed leveling, such as a CR Touch. Manual leveling drifts between prints and is the most common reason new Ender 3 owners get failed first layers and give up. A probe maps the bed and compensates in firmware before each print. Install it before investing time in slicer tuning so you are working against a consistent baseline.

Why does my Ender 3 string so much even after tuning retraction?+

The stock Bowden tube has a 2.0mm inner diameter that lets filament wander during retraction. A tighter 1.9mm tube reduces that play and cuts ooze noticeably. Pair that with dry filament and dialed in retraction. If you switch to a direct drive extruder later, the long Bowden tube is removed and the issue largely disappears.

Do I need a direct drive extruder to print TPU on an Ender 3?+

In practice, yes. Flexible TPU buckles inside the long stock Bowden tube and feeds inconsistently. A direct drive conversion mounts the motor at the printhead so the filament path is short and controlled, which makes TPU reliable. The trade off is added printhead weight, so reduce print speed and retune input shaping if your firmware supports it.

Will Bambu Lab or Creality accessories fit my Prusa, and vice versa?+

Fitment is platform specific. Build plates, nozzles, and hotends are sized and threaded for particular machines, so a Bambu plate or nozzle will not drop into an Ender 3 or Prusa. Filament and generic tools are universal. Check bed dimensions, nozzle thread, and mounting before buying hardware, since ecosystem lock in is real for proprietary parts.

Is a filament runout sensor worth adding to a Creality printer?+

If you run prints longer than a few hours, yes. A runout sensor pauses the printer when filament stops moving, catching both empty spools and jams before they ruin an overnight job. They are inexpensive and plug into the dedicated port on most Creality boards. Bambu Lab printers already include runout sensing, so it is redundant there.